How to create position input for prismatic joint with DC motor ?

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Fatih 2024-9-1

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https://ww2.mathworks.cn/matlabcentral/answers/2149444-how-to-create-position-input-for-prismatic-joint-with-dc-motor

回答： Fatih 2024-9-4

采纳的回答： Divyajyoti Nayak

Hello,

I have a mechatronic system with DC Motor. Currently I am creating force output from my DC motor as Newton.

I want to control the position of my mechanical system so I need to give position input for my prismatic joint.

How can I convert DC motor output to Meter ? (Position input for Prismatic joint is Meter.)

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Answer 1

Divyajyoti Nayak 2024-9-2

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移动：Joel Van Sickel 2024-9-3

Hi @Fatih, I think you can use the 'Ideal Translational Motion Sensor' block to get the position.

Let me know if this works. If it doesn't could you share your model or a dummy version of it for me to work with?

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Fatih 2024-9-3

Hello,

I have tried the Ideal Translational Motion Sensor but it is just offsetting the part the beginning of the simulation and nothing else.

As a summary of what I am trying to do, I want to give my system displacement input like 5-10-20mm and measure the force output and also measure the what force need to make the system move 5mm or 10mm

The video is an example of what I am trying to create https://www.youtube.com/watch?v=egThLwGQqlk

Do you have any idea about it ? Also how can I share my system with you, Thanks a lot for you help

Sam Chak 2024-9-4

I am confused. Did the "accepted solution" fully solve the problem or not?

Furthermore, if you send a constant non-zero reference step signal to the PID controller, it will produce an output signal that grows over time due to the effect of the Integral Action

Logically speaking, how can the system reach a desired position when it receives a perpetually growing actuation signal?